A transport phenomena based model to prevent liquation cracking in aluminum alloy welds

S. Mishra, S. Chakraborty, T. DebRoy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A numerical model has been developed for non-equilibrium solidification in welds that considers momentum, heat and solute transport. The model uses an effective partition coefficient, which considers both the local interface velocity and the undercooling for accurate prediction of solute concentration in the mushy zone. The calculations show that convection plays a dominant role in the solute transport inside the weld pool. The predicted weld metal solute content agreed well with the independent experimental observations. The liquation cracking susceptibility in Al-Cu alloy weldments could be reliably predicted by the model, based on the computed solidifying weld metal composition and the resulting solid fraction considering non-equilibrium solidification.

Original languageEnglish (US)
Title of host publicationTrends in Welding Research - Proceedings of the 7th International Conference
Pages35-40
Number of pages6
StatePublished - Dec 1 2005
Event7th International Conference on Trends in Welding Research - Pine Mountain, GA, United States
Duration: May 16 2005May 20 2005

Publication series

NameASM Proceedings of the International Conference: Trends in Welding Research
Volume2005

Other

Other7th International Conference on Trends in Welding Research
CountryUnited States
CityPine Mountain, GA
Period5/16/055/20/05

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanical Engineering

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  • Cite this

    Mishra, S., Chakraborty, S., & DebRoy, T. (2005). A transport phenomena based model to prevent liquation cracking in aluminum alloy welds. In Trends in Welding Research - Proceedings of the 7th International Conference (pp. 35-40). (ASM Proceedings of the International Conference: Trends in Welding Research; Vol. 2005).